baber/WOPTO huggingface dataset:
Patent CA-1080815-A (CA)
Inventor: FABRICIUS WAYNE N
IPC: H03G3/20
Filed: 1976-01-30
Granted: 1980-07-01
Abstract: AUTOMATIC LEVEL CONTROL CIRCUIT     Abstract of the Disclosure An automatic level control circuit utilizes digital techniques in the gain control loop to maintain an output signal within a predetermined amplitude range.  A comparator circuit, which has preselected limits or threshold levels that establish the predetermined amplitude range, produces a hysteresis property in its operation.  The hysteresis provides a substantial improvement in noise immunity over conventional automatic gain control circuits.  The output of the comparator is applied to digital circuitry which controls the variable gain of a linear amplifier.  The digital circuitry also includes a preset circuit which sets the gain of the variable amplifier to the middle of its range, thereby reducing the average time required for an input signal to produce an output signal within the pre-determined range.  In addition, a decoder indicates the level of the input signal and an out-of-range circuit indicates the relative magnitude of an input signal when it is not within the input range capability of the automatic level control circuit.
Patent CA-1058403-A (CA)
Inventor: KLEIN WALTER
IPC: C21B9/06
Filed: 1976-02-05
Granted: 1979-07-17
Abstract: Abstract of the Disclosure A blast furnace stove is disclosed having an external sheet metal case, an internal lining of insulating and refractory material and a layer of expended silica or foamed glass located as a gastight barrier layer in direct proximity with the inside surface of the sheet metal case.  Preferably, the foamed glass layer is covered on one or both sides, at least in the region of the joints in the layer, with metal or synthetic plastics foils.          Preferably also, the joints in the foamed glass layer are sealed with a ceramic material.
Patent CA-1069936-A (CA)
Inventor: ENGEL LAWRENCE J
IPC: C10M149/02
Filed: 1976-02-05
Granted: 1980-01-15
Abstract: ABSTRACT OF THE DISCLOSURE   Hydrocarbon polymers, preferably copolymers having a degree of crystallinity of up to 25 weight percent, comprising about 2 to 98 mole percent ethylene and one or more C3 to C28 alpha-olefins, are mechanically grafted at elevated temperatures under an inert atmosphere to f?rm an aminated polymer which may thereafter be mechanically-oxidatively degraded at an elevated temperature in the presence of an oxygen-containing gas to form an aminated polymeric reaction product useful as sludge dispersant for fuels and lubricants.  When the aminated polymers have A high molecular weight, they are also viscosity-index improvers with dispersant and/or pour point depressant activity.
Patent CA-1056393-A (CA)
Inventor: BATOREWICZ WADIM
IPC: C08K5/52
Filed: 1976-02-09
Granted: 1979-06-12
Abstract: ABSTRACT      Phosphate esters having the formula   wherein A has the structural formula   and B has the structural formula   wherein the R groups are alkyl radicals, m and n are each integers from 0 to 4 and the sum of m + n is from 1 to about 4, are useful as flame retardants, especially for rigid polyurethane foams.
Patent CA-1040510-A (CA)
Inventor: KINDER MARK R
IPC: F16D55/00
Filed: 1976-02-24
Granted: 1978-10-17
Abstract: Abstract of the Disclosure A brake for a hydraulic device of the type in which a train of driving or driven shafts includes at least one shaft adapted for orbital and rotational motion.  One or more friction-al braking members are fixedly secured to the rotating and orbiting shaft, and are adapted to be frictionally engaged by a fixed member to apply a braking torque to the shaft.  A pre-ferred embodiment discloses a particularly advantageous manner in which such a braking device is applied to a hydraulic motor wherein the orbital and rotational motion of the driven shaft which is braked is provided by a gerotor gearset.
Patent CA-1050496-A (CA)
Inventor: MANIZZA GUELFO A
IPC: B65D71/16
Filed: 1976-06-08
Granted: 1979-03-13
Abstract: Abstract of the Disclosure A wraparound type carrier package for a group of bottles arranged in double row relation and transversely aligned pairs, which package is especially adapted for use in the marketing of bottled beverages and which is designed to satisfy railway require-ments for shipping containers or packages of this type with respect to bottle separation, the package being formed from a flat blank of paperboard or similar foldable sheet material which is cut and scored so that it may be wrapped about the top and bottom of two rows of bottles and the ends of the blank overlapped and connected by cooperating interengaging locking elements, with one margin having an extension panel cut therein which is folded upwardly to a bottle separating position between upper portions of the bottles in the two rows and which is arranged to provide a double thickness of the wrapper material between the bottle areas which would otherwise be in contact.  The bottles in the rows are restrained against endwise movement in the tubular wrapper by engaging heel portions in apertures provided at the juncture of the side and bottom wall panels and separated in the rows by tab separator elements upstanding from the bottom wall panels.
Patent CA-1048116-A (CA)
Inventor: DEVRIES ADRIAN J
IPC: H03H9/76
Filed: 1976-08-10
Granted: 1979-02-06
Abstract: ABSTRACT OF THE DISCLOSURE An acoustic surface wave filter has offset transmitting and receiving transducers formed on the wave propagating surface of a piezoelectric substrate.  A two-segment multistrip coupler is interposed on the propagating surface and provides "track switching" or "sidestepping" action for signals within the coupler passband.  The coupler includes a split-connected portion formed by electrically connected filamentary conductor pairs and a split-isolated portion formed by electrically continuous filamentary conductors and interleaved conductors having a discontinuity at their center.  The spit-connected portion attenuates the symmetrical mode components of acoustic waves within the coupler stop band while the split-isolated portion attenuates the anti-symmetrical mode portion of acoustic waves within the coupler stop band, producing an improved trap response.
Patent CA-1084770-A (CA)
Inventor: UMAHASHI MINORU
IPC: G03G21/00
Filed: 1976-10-06
Granted: 1980-09-02
Abstract: ABSTRACT OF THE DISCLOSURE           An image transfer unit provided with a cleaning device for use in an electrophotographic copying machine com-prises an electrically conductive transfer roller disposed in abutting relationship with a photosensitive member, an elec-trically conductive, rotatable cleaning device disposed in abutting relationship with the transfer roller, and electrical bias means connected with the cleaning device and having a switchable polarity.  During a transfer step, a bias voltage of opposite polarity to that of the toner is applied to the trans-fer roller through the cleaning device.  At this time, toner attaching to the transfer roller is electrostatically trans-ferred onto the cleaning device.  During a cleaning step, a bias voltage of the same polarity as the toner is applied to the cleaning device, whereby the toner attaching thereto is transferred back to the photosensitive member through the transfer roller.  The toner which is transferred back to the photosensitive member is removed by separate cleaner provided.
Patent CA-1098192-A (CA)
Title: Compensation for inherent fluctuation in output level  of exhaust sensor in air-fuel ratio control system for internal combustion engine
Inventor: AONO SHIGEO
IPC: G01N27/409
Filed: 1976-10-26
Granted: 1981-03-24
Abstract: Abstract of the Disclosure In a feedback control system for maintaining the air-fuel ratio of a combustible mixture fed to an internal combustion engine at a preset ratio, a fluctuation in the output characteristic of an exhaust sensor due to deterioration or low temperature is compensated for by varying a reference voltage, which serves as a standard of comparison, in response to a change in the mean value of the sensor output voltage.
Patent CA-1038857-A (CA)
Inventor: ZINGG WARREN M
IPC: B01F5/20
Filed: 1976-11-17
Granted: 1978-09-19
Abstract: ABSTRACT OF THE DISCLOSURE         Disclosed is an apparatus and method for wetting dry particles and dispersing the particles in a liquid.        The dry particles are delivered onto a vibrating tray, which has a circular discharge opening therein and a circular plate secured to the tray below the opening.          Positioned below the tray is a closed container, which includes a body of liquid and an opening in the container lid for receiving the vibrating plate member.  A vertical conduit section in the container has an open end positioned above the liquid surface and directly below the plate member.         In a typical operation, a liquid stream under pressure passes upwardly in the vertical conduit and discharges in the form of a circular spout.  From the tray the particles fall onto the vibrating plate member, and then downwardly, in a circular curtain pattern, into the liquid spout.  In practice, the dry particles will strike the liquid just beyond the apogee of the spout.          This enables the particles to move on a downward vector, along with the liquid, so that good wetting and dispersing are achieved.  The apparatus has particular utility in wetting and dispersing dry particles which are difficult to solubilize, such as polymeric flocculating agents.
Patent CA-1061310-A (CA)
Inventor: BOYD JERRY L
IPC: B65B1/32
Filed: 1977-02-10
Granted: 1979-08-28
Abstract: Abstract of the Disclosure An apparatus and method for supplying empty boxes to a plurality of filling and weighing stations for filling boxes at said stations each independently of other filling stations, and removal of filled boxes from said filling and weighing stations along a common discharge path without box interfer-ence. The filling and weighing stations are arranged in a line. Parallel to this line for at least the length of the filling station line is an empty box feed conveyor. Empty boxes are moved along said box feed conveyor so that an empty box is in ready position opposite a filling and weighing station for immediate replacement of a filled box, the empty box being utilized to displace the filled box from the filling and weighing station and to move the filled box onto a dis-charge conveyor arranged along a line parallel to said filling and weighing station line and on the side opposite from the box feed conveyor. Each filling and weighing station independently fills and weighs a box with flowable material including discrete articles, and each station determines when the filled box is ready for displacement onto the discharge box conveyor. Control means is provided along the discharge box conveyor to permit filled boxes on the discharge conveyor to be moved therealong to a discharge point without interference from boxes being displaced from filling and weighing stations. A method of supplying an empty box to each filling and weighing station in accordance with the demand for an empty box at said station.
Patent CA-1087999-A (CA)
Inventor: SEXTON ROBERT W
IPC: B01D45/06
Filed: 1977-02-15
Granted: 1980-10-21
Abstract: ABSTRACT OF THE DISCLOSURE           A dust separator apparatus having a housing defining a converging dirty gas passage with a dirty gas inlet at one end and a particulate matter outlet at the other end. One wall of the housing is louvred to effect particulate matter separa-tion from a dirty gas stream flowing through the dirty gas pas-sage.  A plurality of projections extend into the converging dirty gas passage to create turbulent flow in the dirty gas stream flowing through the converging dirty gas passage and attenuating noise created by the gas stream.
Patent CA-1068567-A (CA)
Inventor: OTSUBO KIZUKU
IPC: F02P15/02
Filed: 1977-03-10
Granted: 1979-12-25
Abstract: ABSTRACT OF THE DISCLOSURE Two spark plugs are disposed in each combustion chamber of an internal combustion engine to ignite the air-fuel mixture mixed with a considerably large pro-portion of the exhaust gases.  The wall surface of the combustion chamber is formed so that only one spark plug can not be excessively cooled down by the stream of the cool air-fuel mixture inducted through the intake port of the engine.
Patent CA-1098657-A (CA)
Inventor: ROENNHOLM ARVI
IPC: D21C11/00
Filed: 1977-04-05
Granted: 1981-04-07
Abstract: A Method of Recovering Heat as well as Fractions Containing Volatile Alcohols and Sulphur Compounds from Black Liquor in Connection with Pulping Abstract of the Disclosure A method of recovering heat as well as fractions containing volatile alcohols and sulphur compounds from black liquor obtained from pulping.  In a vapour generator, water is, by means of vapour, liberated at a high temperature and under a high pressure from the expansion of black liquor removed from a digester, indirectly vapourized into low-pressure vapour, which is used for vapour treat-ment of chips before their introduction into the digester.  The condensate produced in the vapour generator is, under pressure control, passed into a condenser device, which is operated at a pressure that is lower than the pressure in the black liquor escaping from the digester, preferably at the atmospheric pressure.  The condensate fraction formed in the condenser device as well as the uncondensed gas fraction are cooled by means of indirect cooling and the volatile alcohols and sulphur compounds are recovered from these fractions.          Waste water, preferably secondary condensate from the evaporation plant, is used as the vapourization liquid in the vapour generator.
Patent CA-1076291-A (CA)
Inventor: SEXTRO GUNTER
IPC: C08G2/30
Filed: 1977-05-05
Granted: 1980-04-22
Abstract: Abstract of the disclosure:      Granular oxymethlene polymers are prepared by cooling a solu-tion or dispersion of an oxymethylene polymer, the temperature of the said solution of dispersion polymer, to a temperature just below the said sintering temperature. As dissolving or dispersing agent there is used a mixture of methanol and water. The cooling of the said solution of dispersion is effected in two stages while using a liquid cooling agent or a cooling de-vice. After precipitation the coarse-granular polymer is se-parated from the fine-granular portion. It is suitable as engineering plastic for preparing molded articles.
Patent CA-1073280-A (CA)
Inventor: CHIOLA VINCENT
IPC: H01J29/18
Filed: 1977-05-16
Granted: 1980-03-11
Abstract: FLUORESCENT SCREEN AND METHOD OF MAKING               ABSTRACT OF THE DISCLOSURE      A fluorescent screen is disclosed which comprises a plastic film support layer, a reflectance layer of vacuum-deposited aluminum on said support layer, and a layer of fluorescent material dispersed in an organic polymeric binder located on said reflectance layer.  A method for making the above screen us also disclosed.
Patent CA-1073556-A (CA)
Title: Article with electrically-resistive glaze for use in high-electric fields and method of making same
Inventor: DRESNER JOSEPH
IPC: H01B1/20
Filed: 1977-05-18
Granted: 1980-03-11
Abstract: ABSTRACT OF THE DISCLOSURE         A substrate, such as a ceramic body, carries a layer of glaze consisting essentially of (a) an inorganic oxide glass matrix that is essentially free from ions which migrate in a high-electric field, (b) about 1 x 1019 to 50 x 1019 antimony rations distributed in each cubic centimeter of the glass matrix, and (c) about 4 to 30 weight percent with respect to the weight of said glaze of discrete tin-oxide particles in the antimony-containing glass matrix. The method comprises dissolving antimony, as a compound thereof, in a glass, mixing together particles of said glass and tin-oxide particles, coating the mixture on a substrate, heating the coated substrate to melt the glass particles while retaining tin oxide in discrete particulate form, and than solidifying the molten coating.
Patent CA-1081591-A (CA)
Inventor: ORNSTEIN LEONARD
IPC: G01N1/31
Filed: 1977-07-14
Granted: 1980-07-15
Abstract: ABSTRACT OF THE DISCLOSURE     Apparatus and method for permanently and protectively mount-ing "wet" thin sections of biological specimens on microscope slides wherein each specimen is initially bathed in a low-volatile solvent containing a low concentration of first polymerizable material. Such solvent is allowed to evaporate, whereby the liquid polymeri-zable material permeates and protects the specimen.  Following solvent evaporation, a second polymerizable material is layered over the specimen.  Preferably, the first and second polymeriable materials comprise a mixture of low-volatility, low-viscosity, li-quid acrylic reactomers and a U.V. light-sensitive catalyst system conventional cover slip or other planar transparent member can be positioned over the polymerizable materials, and the same are polymerized by exposure to U.V. radiation.  The first and second now-polymerized materials encapsulate the specimen on the microscope slide, become integral and completely hardened and are fully devoid of any solvent.  The microscope slide is immediately available for examination.     .
Patent CA-1084771-A (CA)
Inventor: WEDELL DAVID A
IPC: B41F15/46
Filed: 1977-07-29
Granted: 1980-09-02
Abstract: INK SCOOP SQUEEGE ASSEMBLY                ABSTRACT OF THE DISCLOSURE     A squeegee assembly for stencilling apparatus employing cooperative front and rear panels astraddle the squeegee, the panels being shiftable between (1) an extended condition away from the squeegee and in which such coop-eratively form an open bottom chamber for the stencilling fluid about the squeegee, and also the rear panel serves as a flow coater and the front panel serves as a fluid barrier, and (2) a retracted position at the squeegee to close the fluid chamber about the squeegee.
Patent CA-1098461-A (CA)
Inventor: OLIVIERI ROBERTO
IPC: C02F1/00
Filed: 1977-08-17
Granted: 1981-03-31
Abstract: ABSTRACT OF THE DISCLOSURE:          The invention is concerned with an improved method for depolluting fresh and sea water bodies from crude oil, petroleum products and their derivatives by spreading onto the water bodies compounds which contain phosphorus and slow-release nitrogen in a form which can be assimilated by aquatic micro-organisms capable of metabolizing hydrocarbons.  The improvement comprises using as the phosphorus source a compound selected from the group consisting of phosphatides, both of synthetic origin and occurring in natural products, and phosphates, and using as the slow-release nitrogen source a compound selected formthe group consisting of hydantoins, amides, allophanates, polyamines, acylureas, esters of hydantoic and allantoic acids, and ureido-derivatives of aldehydes, the phosphorus and the nitrogen in these compounds being present in an amount sufficient to increase the natural biodegradation of the pollutants caused by the metabolism of hydrocarbons by the aquatic microorganisms, the ratio by weight of the nitrogen to the phosphorus in the compounds being greater than about 12 to 1.
Patent CA-1084328-A (CA)
Inventor: RAU WILLY
IPC: A01B35/12
Filed: 1977-08-25
Granted: 1980-08-26
Abstract: Abstract of the Disclosure A cultivator has a frame normally carried on the back of a tractor and pulled in a predetermined direction along the ground.  A plurality of tines extend downwardly from this cultivator and penetrate the ground.  Each tine is pivotal about a respective axis perpendicular to the direction of travel and parallel to the ground and is biased into a normal central position by means of a respective hydraulic actuator.  The cylinders of all of the hydraulic actuators are connected together in a closed network so that if one tine is forced backwardly the other tines hill be urged correspondingly for-wardly and vice versa.  In addition each such tine, which also may be mounted on a parallelogrammatic linkage, may carry a V-shaped backwardly extending blade increasing the mixing and aeration effect of the cultivator.
Patent CA-1087048-A (CA)
Inventor: SZOTT RYSZARD
IPC: F02M7/00
Filed: 1977-08-29
Granted: 1980-10-07
Abstract: Abstract of the Disclosure In the novel method and apparatus for preparation of an air-fuel mixture the fuel is continuously induced, or delivered and induced to a multi-stage atomizer by air or other gas, e.g. exhaust gases, under pressure higher than ambient pressure, the pressure of this air or gas being controlled in accordance with the engine speed and load.  The fuel is continuously atomized and homogenized, preferably several times, in the atomizer, this atomizer being installed in the engine inlet manifold upstream of a throttle and the mixture thus prepared introduced to the engine inlet manifold above of the throttle where it is mixed with the air induced by the engine to charge the engine cylinders.
Patent CA-1069112-A (CA)
Inventor: BAILEY EDWARD A
IPC: B25D15/00
Filed: 1977-09-12
Granted: 1980-01-01
Abstract: ABSTRACT This invention relates to improvements in working member assemblies and is described hereinbelow with particular reference to a novel striking bar assembly for use in open front type rock drills.
Patent CA-1075309-A (CA)
Title: Zinc electrode for low temperatures
Inventor: ARMSTRONG WILLIAM A
IPC: H01M4/02
Filed: 1977-10-12
Granted: 1980-04-08
Abstract: ABSTRACT      The invention disclosed relates to electrodes for use in electrochemical cells, particularly for low temperature applications, wherein the electrode comprises a strip of perforated electrochemically active material folded upon itself to form a plurality of sections. Perforated electrochemically active spacer are provided between and attached to adjacent sections.
Patent CA-1070402-A (CA)
Inventor: DJURINEC MARIJAN
IPC: H01R13/504
Filed: 1977-11-15
Granted: 1980-01-22
Abstract: ABSTRACT    A quick-connect electrical plug using insulation-piercing spikes formed on the inner ends of terminal members.       The same inner ends also have a cable gripping region which enhances the mechanical retention of a lamp-cord in the plug so that the cord will withstand a pull of 20 lbs. minimum.  The plug and its associated terminals are so configured that the electrical-cord and the terminals cannot be removed once the cord has been assembled to the plug.
Patent CA-1053874-A (CA)
Inventor: STINE ORRIN B
IPC: G02C7/04
Filed: 1977-11-30
Granted: 1979-05-08
Abstract: STERILIZER                 ABSTRACT OF THE DISCLOSURE        A sterilizer for use in sterilizing articles removably received therein, includes base means having a first thermal insulating block member with a receiving cavity formed within the first block; cover means including a second thermal insulating block member, the cover means being movable with respect to the base means for selectively covering said cavity; heating means received within the cavity and defining recess means for removably receiving therein an article to be sterilized the heating means having a preselected volume for relatively slowly dissipating heat; and power control means for selectively applying electrical power to the heating means for heating the heating means, and for automatically cutting off the power to the heating means in response to a first predetermined temperature being reached by the heating means, the first and second insulating block members having a relatively large volume, and relatively low thermal conductivity, such that the combination of the heating means and the first and second insulation block members results in a relatively slow rate of heat loss from the heating means for enabling the temperature of the heating means not to fall below a second predetermined temperature, until a measured period of time has elapsed after the electric power has automatically been cut off to the heating means.